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Phase-Transfer Exchange Lead Chalcogenide Colloidal Quantum Dots: Ink Preparation, Film Assembly, and Solar Cell Construction
Small ( IF 13.0 ) Pub Date : 2021-09-24 , DOI: 10.1002/smll.202102340 Mohan Yuan 1, 2 , Xia Wang 1 , Xiao Chen 1 , Jungang He 1 , Kanghua Li 2 , Boxiang Song 2 , Huicheng Hu 2 , Liang Gao 2 , Xinzheng Lan 2 , Chao Chen 2 , Jiang Tang 2
Small ( IF 13.0 ) Pub Date : 2021-09-24 , DOI: 10.1002/smll.202102340 Mohan Yuan 1, 2 , Xia Wang 1 , Xiao Chen 1 , Jungang He 1 , Kanghua Li 2 , Boxiang Song 2 , Huicheng Hu 2 , Liang Gao 2 , Xinzheng Lan 2 , Chao Chen 2 , Jiang Tang 2
Affiliation
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Solution-processed colloidal quantum dots (CQDs) are promising candidates for the third-generation photovoltaics due to their low cost and spectral tunability. The development of CQD solar cells mainly relies on high-quality CQD ink, smooth and dense film, and charge-extraction-favored device architectures. In particular, advances in the processing of CQDs are essential for high-quality QD solids. The phase transfer exchange (PTE), in contrast with traditional solid-state ligand exchange, has demonstrated to be the most promising approach for high-quality QD solids in terms of charge transport and defect passivation. As a result, the efficiencies of Pb chalcogenide CQD solar cells have been rapidly improved to 14.0%. In this review, the development of the PTE method is briefly reviewed for lead chalcogenide CQD ink preparation, film assembly, and device construction. Particularly, the key roles of lead halides and additional additives are emphasized for defect passivation and charge transport improvement. In the end, several potential directions for future research are proposed.
中文翻译：
相转移交换铅硫属化物胶体量子点：油墨制备、薄膜组装和太阳能电池构建
溶液处理的胶体量子点（CQD）由于其低成本和光谱可调性而成为第三代光伏的有希望的候选者。CQD太阳能电池的发展主要依赖于高质量的CQD油墨、光滑致密的薄膜以及有利于电荷提取的器件架构。特别是，CQD 加工的进步对于高质量 QD 固体至关重要。与传统的固态配体交换相比，相转移交换 (PTE) 已被证明是在电荷传输和缺陷钝化方面最有前途的高质量 QD 固体方法。结果，铅硫族化物CQD太阳能电池的效率迅速提高到14.0%。在这篇综述中，简要回顾了 PTE 方法的发展，用于硫族化铅 CQD 墨水的制备、薄膜组装、和设备建设。特别强调了卤化铅和其他添加剂对缺陷钝化和电荷传输改善的关键作用。最后，提出了未来研究的几个潜在方向。
更新日期：2021-09-24
中文翻译：
相转移交换铅硫属化物胶体量子点：油墨制备、薄膜组装和太阳能电池构建
溶液处理的胶体量子点（CQD）由于其低成本和光谱可调性而成为第三代光伏的有希望的候选者。CQD太阳能电池的发展主要依赖于高质量的CQD油墨、光滑致密的薄膜以及有利于电荷提取的器件架构。特别是，CQD 加工的进步对于高质量 QD 固体至关重要。与传统的固态配体交换相比，相转移交换 (PTE) 已被证明是在电荷传输和缺陷钝化方面最有前途的高质量 QD 固体方法。结果，铅硫族化物CQD太阳能电池的效率迅速提高到14.0%。在这篇综述中，简要回顾了 PTE 方法的发展，用于硫族化铅 CQD 墨水的制备、薄膜组装、和设备建设。特别强调了卤化铅和其他添加剂对缺陷钝化和电荷传输改善的关键作用。最后，提出了未来研究的几个潜在方向。
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